This topic contains a solution. Click here to go to the answer

Author Question: The average test score was a 77 with a standard deviation of 5. Using the Empirical Rule, ... (Read 44 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
The average test score was a 77 with a standard deviation of 5. Using the Empirical Rule, approximately what percent of the class would you expect to receive a grade between 72 and 82?
  1.68
  2.75
  3.89
  4.95

Question 2

A test score was converted into a standard score. What does a z-score of 3.7 indicate about the performance on the test?
  1.The grade was 3.7 points above the mean.
  2.The grade was 3.7 points below the mean.
  3.The performance well exceeded the class average.
  4.Nothing can be said about the performance on the test.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

1

Answer to Question 2

3




ssal

  • Member
  • Posts: 572
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)


strudel15

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Excellent

 

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

For a complete list of videos, visit our video library